Dust suction device

ABSTRACT

A dust suction device includes: a housing having a plurality of inlets for the inflow of impurities formed thereon and an inner region of which is independently divided; and resilient actuating members, provided inside the inlets, for opening or closing the inlets by pressure applied from the outside.

TECHNICAL FIELD

The present invention relates to a mat for sucking dust and, morespecifically, to a dust suction device for sucking dust and impuritiescovered on the bottoms of the shoes of a visitor who enters through anexit leading to the outside.

BACKGROUND ART

In general, a mat is used for adsorbing moisture, dust and the like atan exit through which visitors frequently pass to an indoor or outdoorplace so as to maintain the clean state of the indoor place. Inparticular, the mat is used for various purposes at the exits of notonly normal houses but also facilities, which prohibit the penetrationof pollution sources from the outside, such as factories, laboratories,hospitals and the like, thereby removing dust and impurities covered onthe shoes of the visitors.

In general, normally used mats are mostly made from fabrics in order toadsorb moisture or dust. However, the prior art mat made from fabricshas problems of mold growth after the dust and impurities, which areintroduced from the outside, are adsorbed in the mat or horribly badsmell generated from the mold. In addition, a user has to periodicallysterilize or wash the mat in order to maintain the mat in a clean state.Otherwise, the mat can be a breeding ground for bacteria.

In addition, the prior art mat has various problems, due to the simpleweave construction thereof, that the mat has low absorbability withrespect to moisture or dust, cleanliness after the washing thereofcannot be maintained long, and the shape of the mat is likely to bepartially deformed for a long term use, thereby decreasing the productlife cycle thereof.

In order to solve the above problems, various dust suction devices havebeen disclosed in order to remove or suck the dust covered on the shoesso far.

According to a prior art dust suction device 10, if a visitor steps on amat 20, which is formed in the shape of a scaffolding, spring members 30of the areas, where the feet of the visitor are positioned, are loweredand suction holes 22 are opened such that the dust and impuritiescovered on the bottom surfaces of the shoes of the visitor areintroduced through the suction holes, as shown in accompanying FIG. 1and FIG. 2

Further, the dust introduced through the suction holes 22 is sucked intoa suction machine 40 by the suction force generated by the operation ofthe suction machine 40 such that the dust and impurities covered on thebottom surfaces of the shoes can be removed.

However, the prior art dust suction device 10 used as above haveproblems that the dust and impurities introduced through the suctionholes 22 are stacked on the places, where spring members 30 are mounted,in a predetermined thickness, thereby disturbing the downward movementof the spring members 30 and the introduction of the dust and impuritiesfrom the bottom of the shoes through the suction holes 22. Therefore, itis necessary to provide measures to solve these problems.

DISCLOSURE Technical Problem

Embodiments of the present invention are to individually separate aspace, into which dust is sucked, and a space, in which elastic membersare placed, from each other into independent spaces so as to prevent themalfunction of resiliently operating members, which is likely to becaused by dust.

The embodiments of the present invention are to selectively suck dustaccording to the existence of a visitor who enters through an exit.

Technical Solution

According to one aspect of the present invention, a dust suction devicecomprises: a housing having a plurality of inlets formed so as tointroduce impurities and an inner region of which is independentlydivided; and resiliently operating members provided inside the inlets soas to open or close the inlets by pressure applied from the outside.

The housing includes: a top plate provided with the inlets; a bottomplate provided at the lower portion of the housing; a separation platepositioned to be spaced from the bottom plate at a predetermineddistance h1 in the upward direction; and partition walls for definingthe inside of the housing in the traversal direction and positionedbetween the top plate and the separation plate.

The bottom plate includes: folded parts, which are folded in the upwarddirection towards the top plate at both ends; and damping parts providedon the top surfaces of the folded parts.

The partition wall includes: support members provided to the bottomsurface thereof and extending towards the separation plate; andinsertion holes to be inserted by the resiliently operating members.

The housing includes: first space parts formed between the partitionwall and the top plate such that dust introduced through the inlets iscollected therein; and second space parts formed at the lower portionsof the first space parts so as to be provided between the separationplate and the partition wall.

The top plate includes an outlet for discharging the dust collected inthe first space parts.

The top plate further includes auxiliary holes formed to be opened inthe peripheries of the inlets and sucking the air in the periphery ofthe top plate or dust and impurities included in the air.

The resiliently operating members includes: heads inserted into theinlets; and elastic members provided at the lower sides of the heads andelastically supporting the heads.

The separation plate further includes stoppers provided at the lowersides of the heads.

The dust suction device further includes a suction machine for suckingthe dust, which is introduced through the inlets, to the outside.

According to another embodiment of the present invention, a dust suctiondevice comprises: a housing having a plurality of inlets formed so as tointroduce impurities and an inner region of which is independentlydivided; a separation plate for defining the inside of the housing inthe traversal direction and having stoppers formed on the bottom surfacethereof; and resiliently operating members provided inside the inlets soas to open or close the inlets by pressure applied from the outside.

According to a further embodiment of the present invention, a dustsuction device comprises: a housing having a plurality of inlets formedso as to introduce impurities and an inner region of which isindependently divided and connected to a suction machine for suckingdust, which is introduced through the inlets; resiliently operatingmembers provided inside the inlets so as to open or close the inlets bypressure applied from the outside; and a controller for receiving asignal output from a sensor, which is provided at one side of an exit,so as to control power applied to the suction machine.

The controller applies power to the suction machine for t secondsaccording to the signal output from the sensor and then converts thesuction machine into an off-state.

Advantageous Effects

Dust suction devices according to the embodiments of the presentinvention can be stably used even for a long term while preventing themalfunction of elastic members, which is caused by impurities, bystacking dust and impurities in separately divided areas, and also suckthe impurities covered on shoes and the dust floating in the peripheryof a dust suction device.

Dust suction devices according to the embodiments of the presentinvention can be provided in various places such as houses, offices,hospitals, laboratories and the like so as to stably remove impuritiesfrom the shoes of visitors.

DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view illustrating a prior art dust suctiondevice.

FIG. 2 is a cross-sectional view illustrating a using state of the priorart dust suction device.

FIG. 3 is a perspective view illustrating a dust suction deviceaccording to one embodiment of the present invention.

FIG. 4 is a cross-sectional view illustrating the dust suction deviceaccording to the embodiment of the present invention.

FIG. 5 is a plane view illustrating a top plate according to theembodiment of the present invention.

FIG. 6 is a cross-sectional view illustrating a dust suction deviceaccording to another embodiment of the present invention.

FIG. 7 is a cross-sectional view illustrating a dust suction deviceaccording to a further embodiment of the present invention.

FIG. 8 is view showing a using state of a dust suction device accordingto the one embodiment of the present invention.

FIG. 9 is a cross-sectional view showing a using state of a dust suctiondevice according to the one embodiment of the present invention.

FIG. 10 is view showing a using state of a dust suction device accordingto according to another embodiment of the present invention, and

FIG. 11 is view showing a using state of a dust suction device accordingto according to the further embodiment of the present invention.

MODE FOR INVENTION

Hereinafter, a dust suction device according to an embodiment of thepresent invention with respect to the configuration thereof withreference to the accompanying drawings. FIG. 3 is a perspective viewillustrating a dust suction device according to an embodiment of thepresent invention, and FIG. 4 is a cross-sectional view illustrating thedust suction device according to the embodiment of the presentinvention.

Referring to accompanying FIG. 3 and FIG. 4, a dust suction device 1includes a housing 100 formed in a rectangular plate shape, andresiliently operating members 200 provided to the housing 100 andoperating by pressure applied from the outside.

Even though the housing 100 is illustrated in the rectangular shape inthis embodiment, the housing 100 is not necessarily limited to therectangular shape and can be modified into any other shape.

The housing 100 includes a top plate 110, a bottom plate 120, apartition wall 130 and a separation plate 140 and may be made from amaterial having no concern for corrosion and oxidation.

The top plate 110 is formed of plastics or epoxy and may be formed inthe thickness of 3 mm, wherein the thickness is not necessarily limitedthereto. In addition, the top plate 110 may have a top surface on whichfigures, logos and patterns can be printed as desired.

The top plate 110 has a plurality of inlets 112 formed to be spaced at apredetermined interval such that dust and impurities covered on thebottom of shoes can be introduced through the inlets 112. According tothis embodiment, the diameter of the inlets 112 is not particularlylimited and can be changed according to the whole size of the housing100.

The top plate 110 can be formed by mixing raw materials with mineralssuch as ceramics in the shape of powder so as to provide sterilizing andantibacterial actions with respect to the dust or impurities such thatthe antibacterial actions with respect to the germs and mold included inthe dust and impurities can be carried out.

The top plate 110 has the plurality of inlets 112, which are formed at asame interval in the top surface thereof and opened in a predetermineddiameter so as to introduce the dust and impurities. Even though thediameter of the inlets 112 is not particularly limited in thisembodiment, it is preferable that the inlets opened in a dust suctiondevices used in a facility such as a factory or a hospital have arelatively larger diameter rather than that of the inlets opened in adust suction device used at home. Because the factory and hospital haverelatively more visitors rather than a family house and the impuritiescovered on the bottom surfaces of the shoes of the visitors areproportional to the numbers of such visitors.

The bottom plate 120 is provided at the lower side of the dust suctiondevice 1 and formed in a size corresponding to that of the top plate110, and includes folded parts 122, which are folded in the upwarddirection towards the top plate 110 at both ends thereof, and dampingparts 124, which are provided to the top surfaces of the folded parts.

The folded parts 122 are formed in a shape, in which the both ends ofthe bottom plate 120 are extended towards the top plate in thevertically upward direction and then folded inwards at 90°. The reasonsof forming the bottom plate 120 with the folded parts 122 are todisperse a load applied to the top plate 110 throughout the housing 100through the damping parts 124, which are described hereinafter, andsimultaneously promote supporting through the damping parts 124.

The damping parts 124 are provided to the top surfaces of the foldedparts 122, wherein any one of rubber, silicon or leaf springs can beselectively used as the damping parts 124 and it is also possible toprovide any other feature which has a damping function.

The damping parts 124 are formed in a shape, in which the damping parts124 are curved towards the top plate 110, and provided to be spaced fromthe top plate 110 at a predetermined distance. If the damping parts 124are formed of rubber, as an example, the damping parts 124 can bedeformed to be elastically compressed by the load applied to the topplate 110 so as to support the load applied to the top plate 110.

The separation plate 140 is positioned to be spaced from the bottomplate 120 at a predetermined distance h1 in the upward direction suchthat the separation plate 140 can minimize an impact applied to thebottom plate 120 through the distance h1 while partially droopingdownwards when a load is applied to the damping parts 124. The spacingdistance h1, according to the present embodiment, is 1 mm or less.

The separation plate 140 has folded parts 142, which are folded in thevertically upward direction towards the top plate 110 at both endsthereof, and the folded parts 142 are formed to be extended in a state,in which the folded parts 142 are in close contact with the bottomsurface of the top plate 110 so as to support pressure applied to thetop plate 110 therethrough.

The partition wall 130 is positioned between the top plate 110 and thebottom plate 120 and defines the inside of the housing 100 in thetraversal direction. The partition wall 130 is provided so as toindependently divide the inner region of the housing 100. The reason ofdividing the inside of the housing 100 through the partition wall 130 asabove is to separate the dust and impurities, which are introducedthrough the inlets 112, into separate spaces from those for theresiliently operating members 200 such that the dust and impurities canbe removed from the inside of the housing 100 by using a suction machine300, which will be described hereinafter.

The partition wall 130 has insertion holes 134 formed to be opened atpositions corresponding to those of the inlets 112 so as to be insertedby the resiliently operating members 200. The insertion holes 134 areinserted by the resiliently operating members 200 and formed in adiameter corresponding to the diameter of the resiliently operatingmembers 200.

The partition wall 130 includes support members 132, which are providedat the lower side thereof and formed to be extended towards theseparation plate 140, and the support members 132 prevent the downwarddrooping phenomenon of the partition wall 130.

The partition wall 130 defines the inside of the housing 100respectively into first space parts 102 and second space parts 104. Thefirst space parts 102 are to stack the dust and impurities introducedthrough the inlets 112 and defined as independent separate spaces fromthe second space parts 104. That is, the dust and impurities are onlyintroduced into the first space parts 102 but blocked from beingintroduced into the second space parts 104.

The first space parts 102 are formed between the partition wall 130 andthe top plate 110, and the dust and impurities can be introduced intothe areas of the first space parts 102 through the inlets 112 only whenthe inlets 112 are opened by the resiliently operating members 200.

The second space parts 104 are formed at the lower side of the firstspace parts 102 and serve as the spaces for securing the stableoperations of the resiliently operating members 200 without theintroduction of the dust and impurities which are introduced through theinlets 112.

The resiliently operating members 200 includes heads 210 inserted intothe inlets 112 and elastic members 220 provided at the lower sides ofthe heads 210 so as to elastically support the heads 210.

The heads 210 are respectively formed in a cylindrical shape, in whichthe upper portions are formed in the shape of a hemisphere, and have aplurality of brushes 202 provided on the upper portions such that thebrushes 202 can serve to separate dust and impurities remaining on thebottom surfaces of shoes to the top plate 110 while coming into contactwith the bottom surfaces.

Each of the elastic members 220 is provided with a coil spring, which iswound in a predetermined length, in the center of the lower side of eachof the heads 210. However, it should be noted that a spring in any othershape and structure may be provided too. The elastic members 220elastically support the lower sides of the heads 210 all the time and,therefore, the heads 210 can maintain the inlets 112 in the closed stateall the time before any additional load is applied thereto. Forreference, the elastic members 220 are inserted into the elastic membersupport members 204, which are provided to the separation plate 140.

The separation plate 140 as described above further includes stoppers144, which are provided to the lower sides of the heads 210, and thestoppers are provided to be spaced from the heads 210 at a predetermineddistance.

As for the stoppers 144, it is possible to provide, in advance, stopperswhich have different projection lengths from each other according to thelowering lengths of the heads 210, and the stoppers 144 can be variedaccording to the specifications of dust suction devices in the procedureof manufacturing.

The suction machine 300 is connected to an outlet 111 through a tubesuch that the dust and impurities stacked in the first space parts 102can be sucked by the suction machine 300 after the use of the dustsuction device 1 for a predetermined period, or by intermittentlydriving the suction machine 300.

Referring to accompanying FIG. 5, the top plate 110 has a plurality ofauxiliary holes 114 formed in the peripheries of the inlets 112, and theauxiliary holes 114 are formed to suck the dust and impurities includedin the air in the peripheries of shoes in addition to the inlets 112.The auxiliary holes 114 are maintained in the opened state all the timeand introduce the dust and impurities included in the air in theperiphery of the top plate 110 regardless of the opening or closingstate of the resiliently operating members 200.

The top plate 110 includes the outlet 111 for discharging the duststacked in the first space parts 102, which will be describedhereinafter, and the outlet 111 is coupled to the tube provided to thesuction machine 300. For reference, as for the suction machine 300, adevice like a normal vacuum cleaner which can suck dust or a vacuumdevice for generating vacuum pressure is used.

Now, the configuration of a dust suction device according to anotherembodiment of the present invention will be described with reference toaccompanying drawings. Differently from the above mentioned dust suctiondevice, a dust suction device according to another embodiment of thepresent invention does not include the partition wall and has a housingof which thickness is relatively decreased, and the use of this dustsuction device is limited to family use.

Referring to accompanying FIG. 6, a dust suction device 1 a includes ahousing 100 having plurality of inlets 112 formed so as to introduceimpurities and an inner region of which is independently divided, aseparation plate 140 for defining the inside of the housing 100 in thetraversal direction and having stoppers 142 formed on the bottom surfacethereof, resiliently operating members 200 provided inside the inlets112 so as to open or close the inlets 112 by pressure applied from theoutside, and a suction machine 300 (see FIG. 3) for sucking the dust,which has been introduced into the housing 100, to the outside.

The housing 100 includes a top plate 110, a bottom plate 120 and aseparation plate 140, wherein the configuration of the top plate 110 andthe bottom plate 120 are the same as that of FIG. 3 and thus theexplanation thereof will be omitted.

The separation plate 140 is positioned to be spaced from the bottomplate 120 at a predetermined distance h2 in the upward direction and hasa plurality of stoppers 142 formed on the bottom surface thereof. Thespacing distance h2 may be 1 mm to 3 mm, wherein the sum of the distanceh2 and the height of the resiliently operating members 200, which willbe described hereinafter, is 2 cm or less such that stable dust suctioncan be facilitated with minimum thickness.

When the resiliently operating members 200 move downwards by a loadapplied to the top plate 110, the separation plate 140 can partiallydisperse and support the load together with the damping parts 124, whichwill be described hereinafter, and simultaneously prevent the excessivemovement of the resiliently operating members 200 with the stoppers 142,wherein the vertical movement distance of the heads 210, which will bedescribed hereinafter, can be increased by the distance h2 and moreimpurities can be introduced into third chambers 102 a.

In the dust suction device 1 a according to the present embodiment,differently from the dust suction device 1 mentioned as above, the dustand impurities introduced into the third chambers 102 a defined in thehousing 100 can be stacked on the elastic members 220 provided to theresiliently operating members 200. However, the dust suction device 1 ais used at home and thus the malfunction due to the stacking of the dustand impurities can be minimized.

The resiliently operating members 200 include the heads 210 insertedinto the inlets 112 and the elastic members 220 provided at the lowersides of the heads 210 so as to elastically support the heads 210. Theheads 210 have upper portions formed in a hemispherical shape and aplurality of brushes provided to the upper portions. Reference sign 122,which is not explained, indicates folded parts provided to the bottomplate 120.

Now, the configuration of a dust suction device according to a furtherembodiment of the present invention will be described with reference toaccompanying drawings. A dust suction device according to thisembodiment is characterized in that the existence of a visitor whopasses through an exit provided to a house or an office is sensed andthe suction machine is selectively driven according to the sensingresult. A dust suction device according to this embodiment is the sameas the dust suction device illustrated in FIG. 3 in the main constituentelements thereof and thus the main constituent elements of a dustsuction device according to this embodiment will be described withreference to FIG. 3.

Referring to accompanying FIG. 3 and FIG. 7, a dust suction device 1 bincludes the housing 100 having the plurality of inlets 112 formed so asto introduce impurities and the inner region of which is independentlydivided, the separation plate 140 for defining the inside of the housing100 in the traversal direction and having the stoppers 142 formed on thebottom surface thereof, the resiliently operating members 200 providedinside the inlets 112 so as to open or close the inlets 112 by pressureapplied from the outside, the suction machine 300 for sucking the dust,which is introduced into the housing 100, to the outside, a sensor 400provided at one side of an exit, and a controller 500 for receiving asignal output from the sensor 400 so as to control power which isapplied to the suction machine 300.

The controller 500 can apply power to the suction machine for t secondsaccording to the signal output from the sensor 400 and then convert thesuction machine into an off-state.

The controller 500 includes an additional interrupter (not shown) forcontrolling the power applied to the suction machine 300 and anadditional communications module (not shown) for receiving the signaltransmitted from the sensor 400.

As for the sensor 400, any one of a proximity sensor, an ultrasonicsensor and a door open sensor for sensing the opening state of a doorcan be selectively used and any other sensors which are not mentioned inthe present embodiment can also be used.

Now, the using states of the dust suction device according to thisembodiment of the present invention structured as above will bedescribed with reference to accompanying drawings. For reference, thedust suction device according to the present embodiment will bedescribed, limiting the suction device is mainly used in a large-scaledbuilding such as an office, a hospital, a factory and the like.

Referring to accompanying FIG. 4 and FIG. 8 to FIG. 9, the dust suctiondevice 1 is provided to an exit (not shown) through which visitors passfrequently. A visitor stands on the top plate 110 in order to remove theimpurities from his shoes S or walks slowly on the top plate 110.

A load applied to the housing 100 in a state, in which the visitorstands on a corner portion of the top plate 110, is transmitted to thedamping parts 124 through the folded parts 142 of the separation plate140, which is in close contact with the top plate 110. Thus, the dampingparts 124 are deformed to be elastically compressed so as to support anddisperse parts of the pressure applied by the visitor. At the same time,the separation plate 140 comes in contact with the top surface of thebottom plate 120 while moving downwards by the predetermined distanceh1, thereby supporting and dispersing the remaining of the pressureapplied by the visitor.

When the shoes S of the visitor first come into contact with the brushes202, the dust and impurities remaining on the bottom surfaces of theshoes S fall down to the top plate 110. Further, the heads 210elastically compress the elastic members 220 by the weight of thevisitor and move downwards to the lower side of the inlets 112.

In addition, as the plurality of heads 210 corresponding to the areas ofthe shoes S move downwards, the inlets 112 in the closed state aremaintained in a temporarily opened state and thus the dust andimpurities on the shoes S are introduced into the first space parts 102through the inlets 112. When the pressure, which presses the topsurfaces of the heads 210, are released, the heads 210 move towards theinlets 112 by the elastically restoring force of the elastic members220, thereby closing the inlets 112.

After the heads 210 have moved downwards, the heads 210 are maintainedin the moved state without any more downwards movement by means of thestoppers 144. If the visitor walks along the top plate 110, theplurality of heads 210 corresponding to the areas of the shoes S of thevisitor move downwards by the pressure and then restored to the initialpositions thereof with a time difference, and the plurality of inletsare temporarily opened and then closed, in response to the movement ofthe plurality of heads 210.

A load applied to the housing 100 in a state, in which the visitorstands on the opposite corner portion through the top plate 110, istransmitted to the damping parts 124 through the folded parts 142 of theseparation plate 140, which is in close contact with the top plate 110,and the damping parts 124 are deformed to be elastically compressed soas to support and disperse parts of the pressure applied by the visitor.At the same time, the separation plate 140 comes in contact with the topsurface of the bottom plate 120 while moving downwards by thepredetermined distance h1, thereby supporting and dispersing theremaining of the pressure applied by the visitor.

Through the auxiliary holes 114 (see FIG. 5) in addition to the inlets112, the dust and impurities in the peripheries of the top plate 110 canbe continuously introduced into the first space parts 102 from before astate, in which the inlets 112 are opened. Therefore, the dust in theperipheries of the shoes S and the dust remaining on the top plate 110can be introduced through these auxiliary holes 114 regardless of theoperation of the resiliently operating members 300.

The dust introduced into the first space parts 102 do not move to thesecond space parts 104 but are maintained in a state, in which the dustare stacked in a predetermined thickness in the first space parts 102,such that the dust the elastic members 220 provided to the resilientlyoperating members 300 are free from the problems of the malfunctioncaused by the dust introduced into the first space parts 102 and thestacking of the impurities on the elastic members 220.

In the process of introducing the dust and impurities remaining on theshoes through the inlets 112 as above, a large amount of anions and farinfrared rays are generated outside through the top plate 110 and thebrushes 202 so as to sterilize bacterial viruses remaining on the areasin the proximity of the top plate 110 and simultaneously remove thesmell due to the dust and impurities stacked in the first space parts102.

After the dust suction device 1 has been used by a great number ofvisitors, a large amount of dust stacked in the first space parts 102are moved to the suction machine 300 through the outlet 111 such thatthe dust and impurities from the visitors who pass the exit can beeasily removed.

In the resiliently operating members 200 according to the presentembodiment, the plurality of heads are maintained in a mutually coupledstate through connection members 206. Therefore, if any one of thecoupled heads is moved downwards, the other heads are also moveddownwards and thus can open the inlets 112. Therefore, the dust andimpurities in the peripheries of the bottom surfaces of the shoes S aresimultaneously removed while some of the heads, which are presseddownwards by the shoes S, and the other heads, which are coupled to thesome of the heads through the connection members 206, are moveddownwards together.

Now, the using states of the dust suction device according to anotherembodiment of the present invention will be explained with reference toaccompanying drawings. In the explanation, the dust suction deviceaccording to the present embodiment is limited to family use and theinternal structure thereof is limited to be the same as that illustratedin FIG. 3.

Referring to accompanying FIG. 10, the dust suction device 1 a accordingto the present invention is similar to the dust suction device 1 asdescribed above in the whole operational states, wherein the dust andimpurities introduced through the inlets 112 are stacked in the thirdchambers 102 a and the damping parts 200 supports and disperses a loadwhile being deformed to be elastically compressed by the pressureapplied by a visitor.

The separation plate 140 can be moved downwards towards the bottom plate120, but are supported on the top surface of the bottom plate 120 suchthat partial damping is carried out.

After the dust suction device 1 a has been used by a great number ofvisitors, a large amount of dust stacked in the third chambers 102 a aremoved to the suction machine 300 through the outlet 111 such that thedust and impurities from the visitors who pass the exit can be easilyremoved.

Now, the using states of a dust suction device according to a furtherembodiment of the present invention will be explained with reference toaccompanying drawings.

Referring to accompanying FIG. 11, when a visitor opens a door andenters into a room, the dust suction device 1 b according to the presentembodiment senses the entering state of the visitor by the sensor 400and the sensed signal is transmitted to the controller 500.

The controller 500 determines that a visitor entered through the dooraccording to the received signal and transmits a control signal so as tooperate the suction machine 300 for t seconds, thereby operating thesuction machine 300.

As the visitor walks along the top plate 110, the bottom surfaces of theshoes of the visitor first come into contact with the brushes 202, andthe dust and impurities remaining on the bottom surfaces of the shoesfall down to the top plate 110. In addition, the heads 210 are moveddownwards to the lower sides of the inlets 112 while elasticallycompressing the elastic members 220 by the weight of the visitor, andthe dust and impurities are moved to the first space parts 102 throughthe inlets 112. Further, the dust and impurities in the peripheries ofthe shoes are also introduced to the first space parts 102 through theauxiliary holes 114.

The control part 500 applies power to the suction machine 300 such thatthe suction machine 300 can operate for an average time for visitors topass through the top plate 110. After that, the control part 500controls the power, which is applied to the suction machine 300, to beturned off.

Therefore, the suction machine 300 selectively operates only when avisitor passes through the exit, and thus the dust and impurities can beremoved through the dust suction device 1 b.

As described above, while the present invention has been particularlyshown and described with reference to the exemplary embodiments thereof,it will be understood by those of ordinary skill in the art that variouschanges, modifications and equivalents may be made by the addition,changes, deletion or supplements and the like of constituent elementswithin the scope of the present invention defined by the followingclaims and also belong to the technical scope of the present invention.

EXPLANATION OF ESSENTIAL REFERENCE NUMERALS IN DRAWINGS

-   -   100: housing    -   102, 104: first and second chambers    -   112: inlets    -   120: bottom plate    -   130: partition wall    -   140: separation plate    -   200: resiliently operating members    -   210: heads    -   220: elastic members

The invention claimed is:
 1. A dust suction device comprising: a housinghaving a plurality of inlets formed so as to introduce impurities and aninner region of which is independently divided; and resilientlyoperating members provided inside the inlets so as to open or close theinlets by pressure applied from the outside, wherein the housingcomprises: a top plate provided with the inlets; a bottom plate providedat the lower portion of the housing; a separation plate positioned to bespaced from the bottom plate at a predetermined distance (h1) in theupward direction; and partition walls, for defining the inside of thehousing in a traversal direction and positioned between the top plateand the separation plate, and wherein the bottom plate comprises: foldedparts, which are folded in the upward direction towards the top plate atboth ends; and damping parts provided on the top surfaces of the foldedparts.
 2. The dust suction device according to claim 1, wherein thehousing comprises: first space parts formed between the partition walland the top plate such that dust introduced through the inlets iscollected therein; and second space parts formed at the lower portionsof the first space parts so as to be provided between the separationplate and the partition wall.
 3. The dust suction device according toclaim 2, wherein the top plate comprises an outlet for discharging thedust collected in the first space parts.
 4. The dust suction deviceaccording to claim 1, wherein the top plate comprises an outlet fordischarging the dust collected in the first space parts.
 5. The dustsuction device according to claim 1, wherein the top plate furthercomprises auxiliary holes formed to be opened in the peripheries of theinlets and sucking the air in the periphery of the top plate or dust andimpurities included in the air.
 6. The dust suction device according toclaim 1, wherein the resiliently operating members comprises: headsinserted into the inlets; and elastic members provided at the lowersides of the heads and elastically supporting the heads.
 7. The dustsuction device according to claim 6, wherein the separation platefurther comprises stoppers provided at the lower sides of the heads. 8.The dust suction device according to claim 1, wherein the dust suctiondevice further comprises, a suction machine for sucking the dust, whichis introduced through the inlets, to the outside.
 9. A dust suctiondevice comprising: a housing having a plurality of inlets formed so asto introduce impurities and an inner region of which is independentlydivided; and resiliently operating members provided inside the inlets soas to open or close the inlets by pressure applied from the outside,wherein the housing comprises: a top plate provided with the inlets; abottom plate provided at the lower portion of the housing; a separationplate positioned to be spaced from the bottom plate at a predetermineddistance (h1) in the upward direction; and partition walls for definingthe inside of the housing in a traversal direction and positionedbetween the top plate and the separation plate, and wherein thepartition wall comprises: support members provided to the bottom surfacethereof and extending towards the separation plate; and insertion holesto be inserted by the resiliently operating members.